静电纺CA/CPB纳米纤维膜的制备及过滤性能研究  

Preparation and filtration performance study of electrospinning CA/CPB nanofiber membrane

作　　者：杨景 王平 崔江舟 郭佳敏 宋秀峰 YANG Jing;WANG Ping;CUI Jiangzhou;GUO Jiamin;SONG Xiufeng(Shanxi Xinhua Chemical Defense Equipment Research Institute Co.,Ltd.,Taiyuan,030008,China)

机构地区：[1]山西新华防化装备研究院有限公司,山西太原030008

出　　处：《棉纺织技术》2023年第9期7-12,共6页Cotton Textile Technology

摘　　要：为了研发抗菌以及可生物降解的空气过滤材料,以可生物降解的醋酸纤维(CA)为主体原料,溴化十六烷基吡啶(CPB)为改性剂,采用静电纺丝技术,制备了CA/CPB纳米纤维膜并对其结构性能进行表征和测试。结果表明:制备的CA/CPB纳米纤维膜在过滤速率为0.0157 m/s时,纤维膜渗透系数为3.50×10^(-11) m^(2),经验孔隙率为98.0%,阻力压降为1.70 kPa;相比于商业石英纤维滤纸,CA/CPB纳米纤维膜对PM_(2.5)的拦截量更高,过滤效果更稳定;在375 nm波段下和800 nm波段下CA/CPB纳米纤维膜对黑炭(BC)的平均过滤效率分别达到80%和60%以上;CPB的加入使得纳米纤维膜具有更高的力学性能和耐热性能,CA/CPB纳米纤维膜水接触角为124°,呈现疏水性,堆肥试验和抑菌性试验表明所制备的CA/CPB纳米纤维膜具有生物降解性和明显抑菌性。In order to develop antibacterial and biodegradable air filtration materials,the biodegradable acetate fiber(CA)was used as the main raw material.cetylpyridine bromide(CPB)was added as the modifier.Electrospinning technology was used to prepare CA/CPB nanofiber membrane,the structure and property were evaluated and tested.The results showed that permeability coefficient of fiber membrane was 3.50×10^(-11) m^(2),porosity was 98.0%and resistance pressure drop was 1.70 kPa when filtration speed of the prepared CA/CPB nanofiber membrane was 0.0157 m/s.Compared with commercial quartz fiber filtration paper,the intercept amount of PM_(2.5) for CA/CPB nanofiber membrane was higher and the filtration effect was more stable.Under 375 nm wave band and 800 nm wave band,the average filtration efficiency of CA/CPB nanofiber membrane on black carbon(BC)was reached up to 80%and above 60%respectively.Addition of CPB made nanofiber membrane with higher mechanical property and heat resistance.Water contact angle of CA/CPB nanofiber membrane was 124°and hydrophobicity was showed.It was shown through composting experiment and antibacterial experiment that the prepared CA/CPB nanofiber membrane had biological degradability and obvious antibacterial property.

关 键 词：静电纺丝 纳米纤维 空气过滤 纤维改性 生物降解 

分 类 号：TS171[轻工技术与工程—纺织材料与纺织品设计]